The calculated distance (air line) between Stará Ľubovňa and Lučenec is approximately 81 miles respectively 131 kilometers.
By car or train, the actual journey to Lučenec is certainly longer, as only the direct route (as the crow flies) between Stará Ľubovňa and Lučenec has been calculated here.
Air line (approximately)
131 kilometers
71 nautical miles